I’ve learned from experience not to upgrade immediately whenever Apple releases a new version of iOS. As far as iOS 13 is concerned, this seems to have been wise. Here’s The Inquirer‘s summary of the state of play up to today:
iOS 13, which brought with is such niceties as Dark Mode and ‘Sign in with Apple’, was only released on 19 September, but has already seen two updates: 13.1 on 25 September, and 13.1.1 two days later. Now, it’s getting 13.1.2: very much the equivalent of a file named “final final FINAL version.doc” in the vague hope that nomenclature will make the madness end.